Ratio settings: 1.5:1, 2:1, 4:1, 8:1, 10:1, 12:1 and SKULLAttack control range: 0.1, 0.3, 1.0, 3.0, 10 and 30mSecRelease control range: 0.1, 0.3, 0.6, 1.2 sec, AUTO and Lo-FiHPF settings: 30Hz, 60Hz, 105Hz, 125Hz, 185Hz, 330Hz.Makeup gain Output 12dB